The purpose of this paper is to investigate the ecological community spatial construction of West District canal surrounding area in Tainan city. In the meantime, we take the viewpoints of physical space and landscape space. Some research methods are taken including government report collcting, questionnaire, in- depth interview, land-use survey, statistic analysis and content analysis. Questionnaire and interview are administered to 922 inhabitants. The main findings are as follows: (1) We can analyze community physical spatial structure from tools---axial design, hierarchical system, transitional elements, dominance, and closure. (2) There are some different outcomes between adults' and youths' attitudes in community spatial order cognition survey. (3) In canal and surrounding areas' spatial construction, we suggest recreational-cultural facilities in mix-use development and street landscape design and control must be emphasized in urban planning in future. (4) We also can put forward an "ecological community spatial construction of West District canal surrounding area" model that includes : community spatial order and water resource, actors relationship in community construction, and industrialized local culture in this study.